Add sass/scss to project

e.g. to use variables in css
Simplified html

Add/remove relevant elements
Update path, add fonts

Change css folder to styles, more applicable
Use Lato & Merriweather font
Cleanup css

Add variables
Split css into relevant scss files
Make it more readable and easy to edit
Add README :)
Remove scss, add complied css

Github pages doesn’t support scss yet.
Merge pull request #1 from amayvs/prettification

Merged Amay's review